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Go get it scanned
Mine did the same thing,
Bought it out of state drove it 600 miles home fine... next day took the wifey for a coke and it wouldn't start.

Had a cracked hp oil line under the...

There is a wastegate on a 6.0!
Check the pigtail in the wastegate solinoid mounted right on the turbo just behind the fuel filter under the hood, you may have hit the wiring pulling it loose from...